Honeywell 312817T Actuator Assembly R-410A If the outdoor coil is

If the outdoor coil is completely iced over or the system fails to enter defrost mode despite the control board triggering the signal

this sensor features a high-grade stainless steel sensing rod capable of withstanding operating temperatures up to 2190°F

Direct OEM Compatibility: Seamlessly replaces Part Number 40003916-032 and the "U" designated retail version without mounting modifications

and NMQ series actuators

Honeywell 312817T Actuator Assembly R-410A If the outdoor coil isThe Honeywell 312817T Actuator Assembly is a critical pneumatic component designed for precise control within commercial HVAC systems. This assembly features a broad 3 10# spring range (21 to 69 kPa), making it ideal for low pressure sequence control and modulation. Built for direct compatibility, it is the standard replacement for VP513A, VP513B, and VP517 series valves. With a standard 1 2 inch stroke, it ensures reliable positioning and mechanical